GESBC-3130S
User’s
Manual
Version 1.0
Page 16 of 19
4-Mar-13
mmc init 0
fat load mmc 0 0x30000000 uImage
The NAND FLASH sectors must be erased first before new kernel image can be stored. The
following command will erase the NAND FLASH sectors reserved for Linux kernel,
nand erase 0x100000 0x200000
The use the flowing command to store the kernel image from SDRAM to NAND FLASH,
nand write.jffs2 0x30000000 0x100000 0x200000
The following commands can be used to load root file system into the FLASH memory,
nand erase 0x400000 0x7c00000
fatload mmc 0 0x30000000 rootfs.img
nand write.jffs2 0x30000000 x0400000 $(filesize)
Please be noted that the image is first loaded into the SDRAM and then stored into the FLASH
memory. The image size can not exceed the available SDRAM on the board. The $(filesize)
instruct the U-boot automatically calculate the size from data file that was just loaded.
After the kernel and root file system have been updated the board can be simply reboot by recycle
the power.
